TheEnergy Science Center (ESC)at ETH Zurich is an interdepartmental competence centre that facilitates energy research and teaching activities across research fields and departments, and promotes outreach and public visibility of energy research at ETH Zurich. We are seeking a highly qualified and motivated Postdoctoral Researcher to join our team working at the forefront of hybrid AI-optimization modelling. This position focuses on the design of AI-based surrogates of large-scale energy system models and will be integrated in the activities of the Nexus-egroup with close links to the ETH AI Center and the Reliability and Risk Engineering Lab.